package pe.edu.upc.dsd.helloworld.controller;

import java.util.Comparator;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;

@Controller
public class HomeController {
	
	@Autowired
	Comparator<String> comparator;
	
	@RequestMapping(value="/home")
	public String home(){
		System.out.println("HomeController: passing through...");
		return "homeweb";
	}
	
	@RequestMapping(value="/compare", method = RequestMethod.GET)
	public String compare(@RequestParam("input1") String input1,
			@RequestParam("input2") String input2,Model model){
		
		int result = comparator.compare(input1, input2);
		String inEnglish =(result < 0)?"less than" :(result > 0 ? "greater than" : "equals to");
		
		String output = "According to our Comparator, '"+input1+"' is "+inEnglish+"'"+input2+"'";
		
		model.addAttribute("output",output);
		System.out.println("mostrando la salida: "+output);
		return "compare";
	}

}
